Event: Division 4

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Opponent	Rating	Result
Ed Swann	1382	0 - 1
Ashleigh Taylor	1538	1 - 0
Carolus Tang	1332	1 - 0

performance = (sum(opponents ratings) + 400(wins-losses)) / games

1551 = (4252 + 400 * (2 - 1)) / 3)